Device for drawing spikes



(N0 Model.)

VAN R. PAIGE.

DEVICE FOR DRAWING $PIKES, BOLTS, &c.

No. 597,294. Patented Jan. 11,1898.

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UNITED STATES PATENT EE cE,

VAN R. PAIGE, OF HOPKINTON, NE W HAMPSHIRE.

DEVICE FOR DRAWING SPIKES, BOLTS, 84.0.

SPECIFICATION forming part of Letters Patent No. 597,294, dated January1 1, 1898.

Application filed July 1, 1896. Serial No. 597,659. (No model.)

To all whom, it may concern.-

Be it known that I, VAN R. PAIGE, a citizen of the United States,residing at Hopkinton, in the county of Merrimac and State of NewHampshire, have invented certain new and useful Improvements in Devicesfor Drawing Spikes, Bolts, 850.; and I do declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to theletters of reference marked thereon, which form a part of thisspecification.

This invention relates to devices for withdrawing railway-rail spikes,bolts, and the like, and has for its object the provision of an improveddraw-bar by the operation of which the spike, bolt, or the like isreadily removed without injury, the construction of the bar insuring aproper hold on the head of the spike or bolt and the withdrawal of thelatter in a straight line, whereby fracture and bending areeutirely'avoided.

The following description is directed to the details of construction andoperation of my improved draw-bar, and in connection with thedescription attention is called to the accompanying drawings, in which-Figure l is an elevation of my improved draw-bar in position forextracting a railwayrail spike. Fig. 2 is a longitudinal sectional viewof the same in the position it assumes when completing the withdrawal ofthe spike. Fig. 3 is a top plan view of the draw-bar.

Referring to the said drawings by letter, A denotes the bar proper, oneend of which is reduced to form the handle a, while the other end isenlarged to form the head a, in which is a slot a for the reception ofthe spike or bolt, said slot being substantially rectangular inhorizontal section for a purpose hereinafter explained. The outer orfulcrum surface a of the head is inclined and slightly curved, as shown,and the rear wall of the slot extends from a point near the base of saidfulcrumsurface on an opposite inclination to afiord ample space for theupper end of the spike or bolt. Recesses o; are made in each of the sidewalls of the slot for the spike or bolt head, said recesses being formedof two inclined walls, one of which, a, engages in practice the underside of the spike or bolt head flanges. The recesses have their greatestdepth at the upper end and diminish gradually toward the rear wall ofthe slot, as shown.

In Figs. 1, 2, and 3 is shown my form of shifting fulcrum, consisting ofthe fulcrumpiece B, reduced at its upper end to a blunt edge I), whichengages the under side of the bar, as shown, and which has an integralbase I). This fulcrum-piece is connected to the bar by shackles b 32each of which is perforated at the ends and slotted at one end, as atb", and has pin'oonnections at b with the bar through said slots b andat b with the fulcrum-piece. b is a stop on the fulcrumpiece, whichdetermines the angle of the bar when in the position for starting thespike, and at b on the under side of the bar is a stop which engages thefulcrum edge 6. In

practice this construction insures a constant change of fulcrum duringthe operation of withdrawing the spike and results in a movement of thebar-head a, and consequently of the spike held thereby, in practically avertical straight line, the advantages being the minimum of friction,owing to the withdrawal of the spike in a line coincident with the linein which it was driven, and also the withdrawal of the spike intact,there being no bends or fractures.

In the operation of my invention the bar is placed in position with therecessed portion of the slot engaging the spike or bolt head and withthe fulcrum-piece beneath the head. The bar is then moved downward untilthe spike or bolt is partially withdrawn, the fulcrum-pieceautomatically shifting, and with the shifting fulcrum the bar is furthermoved until the withdrawal is complete. The slot is made of snfficientwidth to receive the spike or bolt shank. Hence a firm hold is at alltimes had on the bolt, whereby fracture is avoided. The feature of theshifting fulcrum insures the withdrawal of the spike in a linecoincident with the line followed in driving, the result being thewithdrawal of the bolt intact without injury and free from bending.

An advantage incidental to the use of my improved bar is that less poweris required than heretofore in the operation, owing to the fact that thespike or bolt in its withdrawal takes the same direction as when beingdriven,

there being no-lateralstrain and consequently no increased friction.

The peculiar form given to the slot in the headnamely, substantiallyrectangularinsures a proper distribution of the strain on the spike orbolt, as the slot will receive the spike or bolt as the bar isdepressed, and, moreover, a better hold on the spike or bolt resultsfrom this construction.

I claim as my invention 1. In a drawing device of the class described,the combination of a draw-bar having a beveled stop on its lower side, ashifting fulcrum-piece provided with an upper tapering edge engaged bysaid beveled stop, and the shackles connected to said fulcrum-piece anddraw-bar, substantially as set forth.

2. In a drawing device of the class described, the combination of adraw-bar having a stop on its lower side, a shifting ful- VAN R. PAIGE.

Witnesses:

SAM K. PAIGE, Gno. O. BLAISDELL.

